I need to improve an Automate Script for Whatsapp service

General information for the business: I need to improve an Automate Script for Whatsapp service Description of requirements/functionality: Hi, I need to improve my whatsapp service, I find a script for automate (app android) that send massive message to people that i select, I need to improve this script, I have to send whatsapp message from a contact in csv file. I know there is broadcast feautere but i need something more so if you know what it is Automate please send me a message :) Extra notes: Hi, I need to improve my whatsapp service, I find an script for automate (app android) that send massive message to people that i select, I need to improve this script, I have to send whatsapp message from a contact in csv file. I attach the script and wait your offert! thk:) Francesco